The correct answer to this open question is the following.
Although there are no options attached, we can say the following.
The Rio Grande, Sabine, and Red rivers are similar in they are some of the most important rivers in the state of Texas.
As the second-largest state of the United States, Texas has many rivers that most of these rivers empty into the vast Gulf of México.
In the case of Rio Grande, it is a river that borders with the Mexican states of Coahuila, Tamaulipas, Chihuahua, and Nuevo León. In the case of the Red River, it runs through Louisiana, Arkansas, Oklahoma, and Texas.
Texas and Louisiana have a natural border to the east: the Sabine River.
